The front's not bad, but Altair looks a bit too stretched and distorted for my liking, and I think you should put a background behind it, that isn't just a black background. Same goes for the back.

Speaking of which, I think it looks a bit dull at the moment, to be honest. I'm not really a fan of how that Altair render appears to be floating over the "Nothing is true, everything is permitted tagline", and I don't really like how the text is handled either.

And, I don't think this dark look fits the game too well, I mean, yeah, it's somewhat dark in some parts, but I don't think it's fitting to make it all black. But, that's a purely subjective view on my part.

Overall, it's not bad, but it could be better. My recommendation would be to post your boxes on the Works in Progress section of the forums to get feedback on how to make your boxes better. Sorry if I seemed a bit harsh or mean on this, it truly isn't my intention.